Rotary air-compressor.



H. O. JACKSON.

ROTARY AIR COMPRESSOR.

APPLICATION FILED JAN-12. 19m.

1 ,1 97,5 78 O Patented Sept. 5, 1916.

'3 SHEETSSHEET 1.

H. O. JACKSON.

ROTARY AIR COMPRESSOR.

APPLICATION HLED JAN. 12. 1914.

Patented Sept. 5, 1916.

3 SHEETSSHEET 2 j/O cjoZrsorf.

wi/f vwomo J cffmn.

H. O. IACKSON.

ROTARY AIR COMPRESSOR.

APPLICATlON FILED JAN-12,1914

1 ,1 97,578. Patented Sept. 5, 1916.

3 SHEETS-SHEET 3.

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HENRY O. JACKSON, OF DENVER, COLORAIDQ, ASSIGNOB. TC THE JACKSON CQM'PREQSOH COMPANY, OF DENVER, COLORADO, A CORPORATIQN OF COLORADO.

ROTARY iiin-comrssssoa.

To all whom it may concern Be it known that I, HENRY O. JACKSON, citizen of the United States, residing in the city and county of Denver and State of Colorado, have invented certain new and useful Improvements in Rotary Air-Germ pressors; and I do declare the following to be a full, clear, and exact description of the inventiongi such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to the letters and figures of reference marked thereon, which form a part of this specification.

My invention relates to improvements in rotary air-compressors, my object being to provide a construction having great eili ciency or capacity as compared with its size or bulk, making it practicable to confine within comparatively small space a machine of large air compressing capacity.

My further object is to provide a construction of increased elliciency as compared with the power expended in its operation.

My further object is to provide aconstruction of this class which shall be exceedingly economical in cost as compared with its. elficiency.

It isexceed'i'ngly important in machines .of this class, to reduce the bulk, and also the weight, tothe lowest ppssible limit, since an important use for a machine of this class is the operation of rock-drilling machines, wl'iich are often employed in sections where transportation is di'ilicult, as in rugged or mountainous regions. Furthermore, it is often. exceedingly important to I have an air-compressor that shall occupy little space as compared with its capacity, owing to the limited accessible space for these machines.

Attention is called to the fact that my improved construction may be employed for pumping liquidsaswell. as in the com-pres sion of air-or other gases. Hence, whenever the term. air compressor is employed,

. it must be interpreted as sufficiently comprehensive to. include a construction for pumping liquids as well as adapted for use in compressing air or other gaseous fluids. From this, it will be understood that the same construction may be either an air com pressor or a pump for fluids of all kinds, without changing its mechanical organiza- Specification of Letters Patent.

Patented Sept. 5, 1916.

' Application filed January 12, 1914. Serial No. 811,506.

tion, or departing from the spirit of the invention.

Speaking more specifically, improved construction consists of a re y element eccentrically mounted within a chamber, upon a driven shalt having co-inci dent with th' axis of the char er. Fitted around this eccentrically moi; d element, which is cylindrical in shape, is a series of rings which are movable upon the eccentric and which are connected wi h the inner extremities of oscillatory blades, whose outer extremities engage sockets formed in the casing or stationary Wall of the cham her. The inner extremity of. each oscillatory blade is preferably connected with a pair of the rings which surround the eccentric, each blade having its inner extremity anchored in rings which are rnorabh: independently of the rings in which the inner extremities of the other blades are respectively anchored. ihis make it practicable for the blades to respectively assume their necessary positions during the rotation oi' the eccentric, and is necessary since no two of the air compressing blades maintain the same relation at their inner extremities at all times.

The air compressing chamber is in communication with concentrically arranged chambers formed. in the casing, through the instruinentality of inlet and exhaust check valves. One set of valves opens inwardly in response to the vacuum condition produced in the respective compartments as the blades move to enlarge said compartments, while the other set of valves opens outwardly to permit the escape of the compressed air as the said compartments are contracted, due to the changed relation of the blades which constitute the movable walls of the compartments. Between the eccentric and the rings in which the inner extremities of the blades anchored, is preferably located a bushing sleeve which reduces the friction between the eccentric and the blade anchoring rings.

flaring briefly outlined my improved conslruction I will proceed. to desiribe the same in detail, reference liieing made to the accciiipanyiiig drawing in which is illustrated an. embodiment thereof.

In this drawing: Figure 1 is an end elevation of my impro ed airwompressor,

Fig. 2 is a side view of the same, or a view looking in the direction of arrow c, Fig. 1. Fig. I, is a detail view of one of the check valves :-'li0\\'l1 on a larger scale than Figs. 1 and i. Fig. 4 is a section taken on the line l i. Fig. 3. Fig. 5 is a section taken on the line 5--5, Fig. 2, the parts being shown on a larger scale. Fig. 6 is a section taken on the line 66. Fig. 1, shown on a larger scale. Figs. 7 and 8 are fragmentary views partly in section illustrating the manner of connecting the inner extremities of the blades with the rings surrounding the eccentric element in order to form fiuid tight joint between the compartments; Fig. 9 is a fragmentaiw sectional view illustrating the outer extremity of the stem of the inlet valves, together with its attachments; Fig. 10 is a detailed view showing a two-part ring forming a part of the construction as shown in Fig. 9.

The same reference characters indicate the same parts in all the views. i

Let the numeral 5 designate the body or cylindrical wall of my improved air-sour pressor, the same being equipped with heads 6 which are secured to the body member by bolts 7. The outer portion of the body member is reinforced as shown at 8, and in it are formed concentrically arranged inlet and ex haust chambers 9 and. 10, which are-intersected by check valve casings 12 and 13, 12 being the casings for the inlet valves and 13 the casings of the outlet or exhaust valves.

The inlet valves consist of valve pieces 14 engaging seats 15 formed on the inner extremities of the casings 12, which are threaded into the inner portion of the body member as shown at 16. These valve pieces are provided with stems 17 which pass through interior guides 18 formed integral with the casings 12. The stems are surrounded by spiral springs 19, whose inner extremities engage spider arms 20, integral with the guides 18, and whose outer extremities bear against collars 21, having exterior sockets 22 in which are titted rings 23 engaging circumferential grooves 24 formed in the stem. These rings are each composed of two parts 25, and they constitute stops which engage the collars 21 and p'revent the valve pieces '14 from moving inwardly into the air compressing chamber 26. The outer extremities of the springs 19 engage the collars 21 and retain the latter in their proper relative position and in cooperative engagement with the stop rings 23. The springslt) should be of such tension as to normally maintain the valve pieces in contact with their seats. The casings 12 of the inlet valves are provided with openings 2?, whereby the chambers of these casings are in communication with the annular chamber -9 of the body memberof the structure.

The ontlet'or exhaust valves are similar in construction, except that the valve pieces 28 open outwardly, their stems 29 entering recesses 30 formed in guide lugs 31 integral with the outer extremities 32 of the casings 13. The stems of these valves are surrounded by spiral springs 33 whose outer extremities bear against the casing ends 32, while their inner extremities engage the valve pieces The seats 34 of the exhaust valves are threaded into the inner extremities of the casings, which are interiorly threaded therefor, the said casings being exteriorly threaded, as shown at 35, to engage threaded openings formed in the inner portion of the body member.

Journaled within the heads 6 of the body structure, which are provided with hubs 3t; and webs 37, isa driven shaft 38, to which is secured by means of a key 39 a cylindrical element 40, which is connected with the shaft beyond the center of the said element, whereby as the shaft is rotate'dthe element 40 by virtue ofitseccentric mounting within the chamber 26 will impart the necessary throw to the blades 41, whose innenex'trenii ties are cylindrical, as shown at42, and engage sockets 43 formed in rings 44 which surround the .member 4-0, which may be termed the eccentric.

As illustrated .in the drawing, a bushing sleeve 45 is'interposed between the outer surface of the eccentric and the rings 44 for the purpose of reducing the friction between the rings and the eccentric. This sleeve may, however, be dispensed with, and in that event the rings would be closely fitted to the exterior surface of the eccentric.

As illustrated in the drawing, (see Fig. 6) the inner extremity of each blade ail, except one, is provided with two lugs 42 which engagesockets'? formed in rings suitably spaced; The inner extremity, however, of

one blade 41 has. arelatively large lug 42 which engages a recess of corresponding size formed. in the middle ring of the series,

which is approximately double the thickness of the other rings. It should be remenr bered, however, that no two blades are con nected with the same anchoringa'i'ngs, thus leaving the inner extremities of the blades absolutely free to assumetheir varying positions independently of each other during the rotation of the eccentric element which determines the positions of the inner extremities of the blades. The outer extremities 46 of these blades are approximately cylindrical in shape and occupy recesses 47 of counterpart shape formed inthe body ofthe structure, whereby the said extremities 46 are free to move within their sockets or recesses in virtually the same manner as i preferably extend the entire length of the body of the structure between the two heads 6.

The eccentric element 40 is so mounted that the side farthest from the center of the driven shaft, approaches the inner surface of the body of the structure, sufiiciently near to reduce the space or volume between the two adjacent blades to almost nothing, and it is during the time that these blades are approaching such a position that the air is compressed and forced out 'of the compartment between the blades by opening one of the valves 28, as there is but one check valve controlled exit port which may be designated 48 for each compartment 49 of As soon as the two uppermost blades 41 (see Fig. 5) have reached said position, the space or volume between them is reduced to its smallest limit, and consequently as the eccentric element continues its rotary action the space or volume between these blades begins to enlarge, and the resultipg vacuum tendency opens the corresponding inlet valve piece 14, which is in communication with the annular chamber 9, whereb the air is drawn into the said compartm nt, until the compartment has attained its maximum volume by virtue of the separation of the blades 11 from the position shown at the top of Figlfi to the position shown at the bottom of the same figure, the pair of lower blades under consideration bein the one in the extreme low osition and the one immediately at the left. Between these two positions the volume or snace between the blades is continually expanding and changes from the minimum to the maximum volume. Then, as the rotation of the eccentric continues, the blades which are in position to give the compartment between them its greatest volume, begin to contract or diminish said volume and this contracting or diminishing operation continues until the pair of blades in question reaches the collapsed position. (See Fig. 5). From this it will be understood, assuming that there are eight compartments 49 of the chamber 26, that four of 'these compartments will be expanding and drawing in air, while the other four compartments are contracting and compressing the air, the compressed air from each compartment beginning to escape when the pressure in the compression chamber sutliciently exceeds the pressure within the annular chamber latter.

, Itwill beunderstood that the inlet valve pieces 14 will remain open until the expanding compartment has reached its maximum expansion, but will close practically as soon as compression commences, since there is ractically only atmospheric pressure on their outer surface, plus the tension of the the chamber 26.

10 to overbalance the springs 19, which are comparatively weak and, therefore, negligible.

It will be understood that as soon as the minimum volume between any two blades has been reached. whereby the air has been expelled from the compartment between them, and the said space of compartment begins to expand, the exhaust cheer valves 28 will close, due to the exterior pressure in the chamber 10 and the vacuum tendency in the compartment between the blades due to the changing position of the blades resulting in the expansion of the compartment. The springs 33 also have a slight influence in returning the valves '38 to their seated position.

It must be understood that the annular chamber 9 and the annular exhaust or receiving chamber 10 each has a check valve controlled inlet port and a check valve controlled outlet port for each'compartment or space between any two blades, and that this is constantly true, regardless of the space or volume between the blades; that is to say, whether this volume is reduced to the minimum or increased to the maximum degree, or whether the said space or volume is of any degree intermediate the minimum and maximum. T hesc inlet and exit valves are arranged in pairs, being alined in a direc tion parallel with thelaxis of the driven shaft. It is also true that through the instrumentality of the,inlet va ves, the an nular chamber 9 is successively placed in communication with the compartments 49, while the same compartments are successivel y placed in communication with the annular exhaust or receiving chamber 10 through the instrumentality of the exit or exhaust valves, during which last mentioned time the annular chamber 9 is cut oil from the compartments 49, which are in communication with the receiving chamber 10. The inlet chamber 9 has an inlet pipe 50 threaded into the body of the structure, as shown at 51, while the exhaust or receiving chamber 10 has a pipe 52 in communication thercwith, the same being threaded into the body of the structure, as shown at 53 This pipe 52 may lead to any, desired position, which may be convenient for the distribution of the compressed air.

The body of the machine is inclosed by and mounted upon a casing 54, which incloses the reinforced outer portion of the body of the structure, in which the annular chambers 9 and 10 are formed. This casing is composed of two members 55 having 1nutilt of iim nmchinc by meant; oi" imitx hint; inn-51 through the Hang. '3. wit. -'i:t ;-t tint-w it penings formed in lugx M Tin; t it watmi javkot. hos

: the body of the won OPENE- o i ilztl at ietl irwi to tEt-v o -vi'nwounding: and conti'uvting (i M21316 oingmitmvnt t' i*\\'t('il two of Kit Mutts 41.. it will 5w Hudvzfiooti that tin sumo operation ta gilt-cu ,itih rct't'i'om'v to omit of tin; otiujr wontpau'tnwnt-s into ilit'it tin: wimtntwi' :2 is i'ornwil by tho tiimius i1. Tito air vntmas this iotnnzu'tnients 1 tinm .l't l tlw J(i\' vain; (Ullhfiiitti inlet port tom tin! nmmiur iti'tbtl' i), \Xilit'il l'tft'ti'\"\t its not pl; from ttw ntnmimin'zitr. tiEl'HHf'ti 16H intkt pint FM in onivr to form Mitt tight joints iii-lww-n the wmpurtnivnt i at tiw innm' vxtl'vniitits ot' the tflnatm 1, the CPTIU'IS ot' the miimtzivzti +13 an, Hindu coincidvtit with tho pvi'in wi'zii sin- Elms of tin.- rings \thivh the httiti tugs m nute and the inner (ZXtJ'tElUitiis of the iJOttiQv? of tin: Math-r: tor-- minute :it, tits axial centers of the said h1g9, \t'hercbv thust: extremities of the blades are in \ention,

iiiziiirs ttli of tin? cintniiwi tings NIlll'uUlitiilljJ' mitt vitsmi; L unit tousej' Iiwivon, hlmtvs inning: timi v-xtivniitiw )HUViliPiY HHHHHPti in tin \iitii of tilt vintnr but amt th mitt ring, 1'1 zapwtiht-ty, to [mm :1 voilapsibic (-onqnu'tnwnt :uinptt-ti to in: AL tvrnutctv expanded nmi ttmti iteti suiel element is rotntcaL titu wait of the (filtllllhtl being pimitimi with r m-i; \kiitfi (UHU'OHLti inlet and 0551mm, orts vomrmmiouting with the said y u 11:! tut-mt )Htl ivmi ing; l'vspectiwtv In tho voivcl'.

5. Apparatus ot' til (i555 itxwtiiwtl minprising a (:hzttiibtkh :1 cylindrical otmn nt. uc wnti'ii-nil)" mounted to rotate tiwrein. its axis of rotation being cii inci'itenti with that of the Chilllltjt rings surmumiing said ete- 11:4 the lncnt and loose thereon, blades having their cstrcnnti moralilv mounted in the wall, 01* the chamber and the rings respectively to form a collapsible L'Oll'llh'tlillfitllt adapted a in be alternately expanded and, ('ontl'actul u s' 'd element is rotatml, the wall oi the wrunnbcr' having check mire controlled inwi and exhaust pori :ununicating with la mm :wl imiprcsscd air re- .Q Talmud in tlzc na l oi the choral r t 2mg, '1'; 'w, m ,iunaunnation and the exnausr M ii lpparatns of the described com frog a chamber, a cylindrical element ec ccsitricali mounted in said chamber, to rorate on ti 1 axis of the latter rings surround said lenient and loose thereon, blades outer extremities mov'ably sinll of lhe chamber, and. their chored in the g connected u. and indepcndentiiustment, certain of the blades wnnected with a plurality of mtremitics at the adjacent blades rd to divide the said chamber into brim: s2 willapsmli ampartmcnts winch are succesi ninclcl and contracted as the ocean ally niminred elenn-i'it is rotated.

iipyaratus ut' the class described com inn 1: chandler, a cylindrical element ecn -iu=lv mounted to rotate in said chaini$-"l'- and daring: axis of rotation coinci- :5 :21 with the H1115 oi" the chamber, rings sxiriwumlingr said element and loose thereon, ades having; their outer extremities mow i ln'llnltd the wall of the chamber, and their inner extremities movabiy an clawed in the rings, the several blades being zwnnectcd with different rings to p rmit ind pendent automatic adi simcnt. the we, inanitiws it the a cut blades beiiuispaced to divide the said cham er into collapsible mnnmrtments which are successively expanded and contracted the eiw ntrically A unted lenn-nt i :ted, the sev ral com ynncu baring unatic val e cona'ullcd inlet and exhaust ports.

" Apparatus L oi. lhe clams ucacrilied comthe axis of the chamber, rings surrouiuling said element and loose thereon. blades barin;' their outer cxtren'iities movably anchored in the avail of the chamber, and their inner extremities inovaibly anchored in the rings, the several blades being connected will: :iitlercnt rings to permit independent an: :nnatic adjustment, the extremities of the cent blades being spaced to divide the an d chamber into collapsible compartments which are successively expanded and contracted as the eccentrically mounted element is rotated, each compartment having check valve cont-rolled inlet and exhaust ports.

10. Apparatus of the class described comprising a chamber, a cylindrical'element ecoentrically mounted to rotate in said chamber, its axis of rotation being coincident with the axis of the chamber, rings surrmlndinp said element and loose thereon, blades having their outer extremities movably an- & hon-ii in the wall of the chamber, and their i extremities movably anchored in the I. s, the several blades bein connected with dili'erent rings to permit independent itomatio adjustment, the extremities of the 'acent blades being spaced to divide the said chamber into collapsible compartments which are successively expanded and contracted as the eccentrically mounted element is rotated,

each compartment having check "valve controlled inlet and exhaust ports, the wall of the chamber being equipped with an annular compressed air receiver to which the exhaust ports lead.

i 2. Apparatus of the class described comprising; a chamber, a cylindrical element ecwntrirally inbuntcd in said chamber, to rotats on an axis coincident with the axis 0 the chamber, rings surrounding said element and loose thereon, blades having their outer extremities movably anchored in the wall of the chamber, and their inner extremities movabl anchored in the rings, the several blades icing connected with different rings to permit independent automatic adjustment, the, extremities of the adjacent blades being spaced to divide the said chamber into collapsible compartments which are successively expanded and contracted as the ccentric-ally mounted element is rotated, each compartment having a distinct set of check val vc controlled inlet and exhaust ports, the wall of the chamber being also equipped with an annular receptacle for atmospheric air to which the inlet ports lead.

12. Apparatus of the class described comrising a chamber, a-shaft passing axially therethrough and journaled therein, a cylindrical element eccentrically mounted on said shaft to rotate therewith, rings surrounding said element and loose thereon, curved blades m n w Muss 'whn m main rmmdin rnrvwi iremitivs 1-way Uniivelv. 110 M1 wnncch-d m, the. 115 m rm 1n scribe eiements to form an 120 said elements lnnsely blades movably n iihftillnpart- 130 imam nbera.

inter of mlch prxi Wm] 11; d

ble and expzmdv its evcvnti' (1. each valve control (iii pnwsion c nut pm 141 App: pri'ing :1

rthrmlgh an 11 elem aft to rot vlvmvnf s hm'in ively mum! eXtrmn Silk they

55 dr A ties p: 1 ups:

dependen ring pay 0 and mm nnnuiar 50 com sau bladP spect, 69 the chamber am ments adapted to be successively expanded and contracted during the movement of the rotary element.

19. Apparatus of the class described conr prising an interior and an exterior element mounted in eccentric relationto form an interposed chamber, one of said elements being rotatable, the. interior element having engaging rings free to move 'rotatablylthere on; and blades whose; opposite; extremities are respectively moy ably ,moliiited in the rings of one elementfan d-intli' wall ofthe other-element, oertain of the blades being each connectedwith a, plurality of rings.-

20. Apparati s of the classdescribemcom prising anginterior and an exterior element mounted in eccentric relation mitorm an interposed chamber, one element being-rota table, the interior element; having loose rings, and blades whose opposite extremities are respectively movably' anchored in the rings of one element and in'the wall of the other efle'ment theextreniities"=of the blades eccentric felat being spaced to form; the chamber into collapsible compartmentswhich are expanded andi cont'racted during the movement of the rotary element; certain of the blades beingeach connected' wi'tha pliirality of rings 21'. Apparatus of the classdescribed,com-- prising an: interfor elementand an exterior element,.the; elements being mounted in it; one element? being; rotalt ableg the; inter-i65 element having ringsv tremitieez tiona'ry' the interier relement' "hav with the: We

circumferentially engaging the sa e: and free". to turn thereon, blades; whose opposite extremities are respectively,-rnovably an- 'chored" in the ringsof the interior' -element and the: will of the: other element; certain of the blades. each connected with a: purality ofi'f-rings,-f the extremities: of the b'ladestbein J spa'eed'l to form" thers'a-id cham- 'be'r"intoi col ii- Sitilecom'pa-rtmenw Which:- are expanded an contracted during' the move-' ment of the rotary element. 7 Y

:23. Appa'ratus of the class desc-ribed,-comprising two-elements arranged -0'nc within- 1 the other in eccentric relation one being Sta tionary and the other rotatable, the rotatable tremities 'chor'ed m the rings of the interior clement,

, ofv inleti and ex aiist" element being mounted in such relation to the stationary element that its axial center is beyond the axial center of the stationary element, the ltlt llfil elelmtlt having rings loose thereon, and blades whose'oppositc ex .are respectively niovably ancer'tain of theblades being'each connected with a plurality of rings, aud the wall of the exterior element, the extremitiesof the blades being spaced to fOl-lll the said chain her intocollapsible comimrt'ments \iihich are expanded and eontracted during the moveinent-of fth'e rota iy elenient the structurebe-- ing'; pr oyided with inlet ind exhaust POI'tS for the collap's'ifile' coi-n'pa it'ni'ehts.

' Xpparatlisof the class described corn g a chamber, an element eceentrically I lt6=rot'-'ate therein a sleeve surround-- in'g" said element, rin s cur-reaming said sleeve a'lid loose" thereon ind' blades having their cxtieniit'i'es [no 1 mounted inthe walls of theiclrambt-r and-the said rings, re-' spetively; to forma collapsible compartment adapted to be. alternatel expanded and contracted as' the' saidrelenlcut-is r0 tated, ce tain' of .the bladesbeing each connected with aplnralit iof rings Agparatusofi the class described coniprising a (ihamliver, an element eccentrically mounted therein, a ,sl'eeve-Surrounding said element, a ser'ie of. rings surrounding said sleeve, 'blatle's ha in jtheir, oil-terextremitieslno'vably anchoF'cd iii--tlie' vall -ot the cliain' her and their injietextremities v inova'bly connected l with saidrings; blades being ea-c connected a lurality;

0f rings 'fthediladee being: spaced to form collapsible compartliient s in: sai chamber the respective.- blades being connected with ditfe'reiit' rings to permit indeiie'ndent, auto-1 matic adj lilqtme'nt d-l nzitig"the rotation-of said lement; i

26. Apparatiis'of the class desitibed com I p ris'in'gfa. cliaml'ier'; an "element ece ,utri'c'ally mounted to? rotate therein, rings surround ing said-element'- and loose thereon, blades having their extremities. mmja bly mounted respec v'ely, to form a collapsi-l'ile' en adapted to be alternately e. pai'i'deld'afit contracted as the said-clementL-is rotated'g'the extremities of the; blades which engage the rings, being provided with cylindrical; lugs Whose: centers ween-incident rings, colnpai in the Wall's-of the chamliei: and the-said i e witlrth'eperipheral slufacc ofthe rings, the

innerea trem'ities of: thilHHllUS of the. bladescompartments; substantially a. diw'rilved.

272" An air compressor or'sil'iii'lar apparatus comprising acylindrical (-l'iamher'; a cylii'idrical clement inolnntcd to revolve around the axis f the iflnlllilwf as a center, said axis. passing through said clement be yond its true center, rings surrounding said element and loose thereon, the chamber having a compartment provided with collapsible walls whose outer extremities are movably mounted and largely concealed within the wall of the chamber, the innerextremities of certain of the collapsible Walls being each pivotally connected with a plurality of rings.

28. A paratus of the class described comprising a cylindrical chamber, a cylindrical element mounted to revolve around the axis of the chamber which passes through said element beyond its center, rings surrounding the said element and loose thereon, and blades having their outer extremities movably niount-cd and largely embedded in the wall of the chamber. the inner extremities of certain of the blades being each pivotal-1y connected. with a plurality of rings, to form a collapsible compartment adapted to be alternately expanded and contracted as the said element is revolved.

29. Apparatus of the class described comprising a cylindrical chamber, a cylindrical element mounted to revolve therein around the axis of the chamber, which passes longitudinally through the said element. between its center and its periphery, rings surrounding the said element and loose thereon, and blades having their outer'extremities movably mounted and embedded in the wall of the chamber, the inner extremities'of certain of the blades being each pivotally connectedwith a plurality of rings, to form a collapsible compartment adapted tov be alternately expanded and contracted as the said element is revolved. 4

30. Apparatus of the class described co mprising a cylindrical chamber, a cylindrical element mounted to revolve therein around the longitudinal axis of the chamber, which passes longitudinally through said. element between its center and its periphery and parallel with the latter, rings surrounding said element and loose thereon, blades having their outer extremities moyably mounted and :embedded in the Wall of the chamber and the inner extremities of certain of the blades being each pivotally connected with a plurality of rings, to form a collapsible con'ipartment adapted to be alternately expandedand contracted asthe said element is rotated, and means for controlling the fluid inlet and exhaust to and fronrthe chamber:

31. Apparatus of the class described comprising a c \-'linzlrical chamber, an interior and exterior element mounted in eccentric relation, one of said elements being rot-a table, rings loosely mounted on the interior clement, through which the axis of the chamber passes longitudinally between its centre and its periphery and parallel with the latter, and blades whose outer extremities are movabl'y anchored and embedded in the. exterior clement, theinner extremities of certain of the blades being e: :h pivotally connected with a plurality of rin is, said blades beingspaced to form a collapsible compartment adapted to be expanded and contracted during the movement oi the rotary element, the two elements being arranged to form an interposed compartment within said chamber.

Apparatus of the class described comprising a cylindrical chamber, interior and exterior elements mounted in eccentric rclation -.t.oform an interposed compartment, one of said elements being rotatable, a series of rings loosely mounted on the interior ele ment, blades whose outer extremities are movably anchored and embedded in the exterior element and whose inner extremities are hingedly connected with the rings, certain of the blades being each pivotally connected with a plurality of rings, the extremities of the blades being spaced to form the said interposed compartment into number or collapsible subdivisions adapted to be successively expanded and-contracted during the movement of the rotary element, the aggregate length of all the. blades being equal approximately to the circumference of the chamber.

33. Apparatus of' the class described comprising a cylindrical chamber, an interior and an exterior element mounted in eccentric relation to'form an interposed compartment, one of said elements being rotatable, the interior element having engaging rings freeto move rotatably thereon, and blades whose opposite extremities are respectively hingedly connected with the rings of one element andj movably embedded in the wall of the othel' element, certain of the blades being each connected with a plurality of rings, the aggregate length of the said blades being-substantially equal to the circumference of. the chamber.

34. Apparatus of the class described com prising a cylindrical chamber, an interior and an exterior elementmounted in eccentric relation to form an interposed compartment, one element being rotatable, the interior element having loose rings, and blades whose opposite extremities are respectively hingedly connected with the rings of one element and movably embedded in the wall of the other element, certain of the blades being each pivotally connected with a phi" rality of rings, the extremities of the blades being spaced toform the interposed compvhzing 2x vyiindf n: Film:

:a 91m aged. lutwn to farm as inbupuwi 4 (me ekunem being muzzmr-d in m'luiv v: the other cbmwnt i :inlimmrv. thv inn'rm ulenmli; 1;: wing rings virmez;RA-wniLfliy r-nmu uni iwqn thew-m1 (v msnv w-Jrnniiivs w gaging um binds-w m; m are speviiwl umvaihly uwrhuwd and mnhmhlm in Line i :wx

H0011 in i'm'nz M: flu;

and

Mum 51,;

i Mimics? vhwm t.

M: m an mum 12: un." wtt rwi {the rings for Lin-wing tight l0 terposed'ch'ambezg om: (E-salami,

2 rings for forming! 3v thereon, blades whose opposire iexi'rmnitiw are respectively movai iy momzavai in the rings: of one element and ,m H1 all of me other elementQnnd means i; talent of mic-1 between 1 Mi of Lhe mm 15 element, the extremi iivs of the him kas being paced to form flu? chmnber ir "1o compartment; which are treated during the: mower element, and means: in"

in? mi element, the two e'iememig beiog mounied in wcentrie relation to form an interposed chamber, one elemen? being: oiatabie, the interior elemufit having; rings loose thereon, blad s whose opposite em :miiies are re spar-Lively mommy ronueciwl w lds, the rings of one elenwni and w ih the waii of the other element the nxtrexnitie 5 he Diaries bring spaced to form: ihfchamber into 001 lapsible compartments which are expanded and contracted during the me mmat of the rotary element, the machine beiog: provided vith-controlled inlet and exhaust, ports for each roilapsible c am' mrm and means independent of the blades for arming tight joints between the Madez: m: the rings.

In testnnony vd'm'enf ii afiix: my time ir pr-Gs'crwe of Wu w 5-35;

H 5135B Y (1 $501; 

